Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6518389 | Aliphatic thermoplastic polyurethanes, processes for their preparation and their use | Wolfgang Kaufhold, Hans-Georg Hoppe, Herbert Heidingsfeld, Henricus Peerlings | 2003-02-11 |
| 5981655 | Process for preparing TPU molding compositions | Herbert Heidingsfeld, Willi Meister, Wolfgang Brauer, Friedemann Muller, Hans-Georg Hoppe +2 more | 1999-11-09 |
| 5925697 | Melt processable polyurethanes containing wax | Wolfgang Brauer, Friedemann Muller, Jurgen Winkler, Hans-Georg Hoppe, Karl-Heinz Wolf +1 more | 1999-07-20 |
| 5760133 | Process for preparing TPU molding compositions | Herbert Heidingsfeld, Willi Meister, Wolfgang Brauer, Friedemann Muller, Hans-Georg Hoppe +2 more | 1998-06-02 |
| 5696205 | Process for preparing TPU molding compositions | Friedemann Muller, Wolfgang Brauer, Hans-Georg Hoppe, Hans-Georg Wussow, Herbert Heidingsfeld +2 more | 1997-12-09 |
| 5645945 | Multi-layer films made from copolyamides | Werner Nielinger, Helmut Schulte, Edgar Ostlinning | 1997-07-08 |
| 5567791 | Process for the continuous production of thermoplastic polyurethane elastomers | Wolfgang Br auer, Friedemann M uller, Herbert Heidingsfeld, J urgen Winkler | 1996-10-22 |
| 5300709 | Process for working up a hydrogen fluoride phase from a fluorination reaction mixture | Johannes Eicher, Werner Rudolph | 1994-04-05 |
| 5238737 | Use of polymer blend films as supports for diagnostic test strips | Claus Burkhardt, Thomas Doege, Karlheinz Hildenbrand, Werner Kroll, Alexander Riebel +2 more | 1993-08-24 |
| 5140056 | Alkali or alkaline earth salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent polycarconate films | Volker Wiskamp, Dittmar Nerger, Werner Waldenrath | 1992-08-18 |
| 5076987 | Process for the production of optically isotropic extrusion films | Joachim Wank, Hans-Leo Weber, Claus Burkhardt, Dieter Freitag, Werner Waldenrath | 1991-12-31 |
| 5037220 | Printing ribbon comprising polycondensates | Volker Serini, Claus Burkhardt, Dieter Freitag, Uwe Hucks, Werner Waldenrath +1 more | 1991-08-06 |
| 4876033 | Moulded bodies containing carbon | Heinz-Jurgen Dziurla, Dieter Freitag, Werner Waldenrath, Claus Burkhardt | 1989-10-24 |
| 4791016 | Stretched polycarbonate films filled with carbon black | Werner Tischer, Werner Waldenrath, Hans Kaloff | 1988-12-13 |
| 4786708 | Use of films of polycondensates | Volker Serini, Claus Burkhardt, Dieter Freitag, Uwe Hucks, Werner Waldenrath +1 more | 1988-11-22 |
| 4654411 | High molecular weight polyesters, preparation and use thereof | Volker Serini, Werner Waldenrath, Dieter Freitag, Uwe Hucks, Joachim Wank +1 more | 1987-03-31 |
| 4599262 | Electrically conductive polycarbonate laminates and their preparation | Werner Tischer, Hans Kaloff, Hans-Leo Weber | 1986-07-08 |
| 4491656 | Polyphosphates and process of preparation | Volker Serini, Hans-Dieter Block, Dieter Freitag | 1985-01-01 |
| 4465840 | Process for the production of (thio) hydantoins | Wolfgang Jakob, Willi Dunwald, Karl-Heinrich Meyer | 1984-08-14 |
| 4465839 | Process for the production of hydantoins | Wolfgang Jakob, Willi Dunwald, Karl-Heinrich Meyer | 1984-08-14 |
| 4448942 | Process for the production of hydantoins | Wolfgang Jakob, Willi Dunwald, Karl-Heinrichrich Meyer | 1984-05-15 |
| 4298515 | Process for the preparation of polymers containing hydantoin groups | Jurgen Lewalter, Ludwig Rottmaier, Rudolf Merten, Wilfried Zecher, Willi Dunwald | 1981-11-03 |
| 4281095 | Coating compositions obtained by reacting amino carboxylic acids derivatives with polyisocyanates and compounds containing carboxylic groups to produce polymers containing hydantoin rings and amide groups | Willi Dunwald, Jurgen Lewalter, Rudolf Merten, Ludwig Rottmaier, Karl-Heinrich Meyer | 1981-07-28 |
| 4269750 | Process for the preparation of polymers containing hydantoin groups | Jurgen Lewalter, Ludwig Rottmaier, Rudolf Merten, Wilfried Zecher, Willi Dunwald | 1981-05-26 |